da Silva, Hernani Alves, et al. “Dairy Heifers’ Performance in Winter Annual Pastures under Integrated Crop‑livestock System”. Pesquisa Agropecuaria Brasileira, vol. 46, no. 10, Jan. 2012, pp. 1372-8, https://doi.org/10.1590/S1678-3921.pab2011.v46.9075.